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Performance Tests
TAS 455 and TAS 465 Service Manual
4Ć25
Sine Wave Generator
Precision Cable
50 W Terminations
DualĆinput
Coupler
Figure 4Ć12:ăTrigger Sensitivity Test Setup (One)
3. Set the frequency of the sine wave generator to 25 MHz.
4. Press the AUTOSET button.
5. Set the volts/div scale to 50 mV.
6. Set the sec/div scale to 100 ns.
7. Press the VERTICAL MENU button and set CPLG to DC
8. Press the TRIGGER MENU button and make the following selections
from the main trigger menu:
H Set MODE to Auto
H Set SRC to Ch1
H Set CPLG to DC
H Set SLOPE to Rising
9. Press the MAIN/DELAY SELECT button and make the following selecĆ
tions from the delay trigger menu:
H Set MODE to Runs After
H Set SRC to Ch1
H Set CPLG to DC
H Set SLOPE to Rising
10. Set the delayed sec/div scale to 50 ns.
11. Press the HORIZONTAL MENU button and select DELAY.
12. Set the delay time to 15 ns using the General Purpose Knob.
13. Set DELAY to Off.
14. Adjust the sine wave generator amplitude for a three division display.
15. Add a 10X attenuator to the test setup as shown in Figure 4Ć13.